Exploration of the brain from its superior aspect

Right centrum semiovale

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please contact Drew Bourn at dbourn@stanford.edu

Image #10-1

Exploration of the brain from its superior aspect

Right centrum semiovale

The right hemisphere has been cut horizontally just above the level of the body of the corpus callosum. The centrum semiovale is displayed and a number of important relationships of surface landmarks to deeper structures may be studied.

1
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Superior frontal gyrus

2
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Medial frontal gyrus

3
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Inferior frontal gyrus

4
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Dissected fibers of corpus callosum

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Caudate nucleus

6
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Septum pellucidum

7
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Insula (partially dissected)

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Emerging fibers of internal capsule

9
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Anterior tubercle of thalamus

10
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Choroid plexus lateral ventricle

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Lamina affixa

12
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Fornix (crus)

13
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Deepest fibers of corpus callosum (splenium)

14
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Inferior horn of lateral ventricle

15
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Cerebellum

16
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Lingual gyrus (cut across)

17
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Frontal pole

18
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Superior frontal sulcus

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Cingulate sulcus

20
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Cingulate gyrus (labeled at anterior and posterior limits, the gyrus being sectioned longitudinally between the points labeled)

21
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Inferior frontal sulcus

22
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Radiating fibers of internal capsule

23
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Cingulum

24
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Superior longitudinal fasciculus

25
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Lateral cerebral fissure (sylvian)

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Superior temporal gyrus

27
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Corpus callosum (splenium)

28
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Inferior parietal lobule (guide line in the area of confluence of the angular gyrus and the supramarginal gyrus)

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Superior temporal sulcus

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Precuneus and parieto-occipital fissure

31
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Occipital part corona radiata (the geniculocalcarine tract and various association fiber systems pass to the cortex of the occipital lobe through this area)